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5,7-Dimethoxy-4-(2,5-dimethoxyphenyl)-2H-1-benzopyran-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

39020-34-3

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39020-34-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 39020-34-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,0,2 and 0 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 39020-34:
(7*3)+(6*9)+(5*0)+(4*2)+(3*0)+(2*3)+(1*4)=93
93 % 10 = 3
So 39020-34-3 is a valid CAS Registry Number.

39020-34-3Downstream Products

39020-34-3Relevant academic research and scientific papers

Synthesis of neoflavones by Suzuki arylation of 4-substituted coumarins

Boland, Gerard M.,Donnelly, Dervilla M. X.,Finet, Jean-Pierre,Rea, Martin D.

, p. 2591 - 2597 (2007/10/03)

Palladium-catalysed coupling of the 4-chloro- or 4-bromo-coumarins 1-4 with arylboronic acids 5-13 under the Suzuki reaction conditions constitutes an efficient access to 4-arylcoumarins. These 4-arylcoumarins can also be obtained in good yields (70-97%)

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